USN-5257-1

See a problem?
Please try reporting it to the source first.
Source
https://ubuntu.com/security/notices/USN-5257-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5257-1.json
JSON Data
https://api.osv.dev/v1/vulns/USN-5257-1
Upstream
Related
Published
2022-01-31T12:40:54.455915Z
Modified
2025-10-13T04:35:44Z
Summary
ldns vulnerabilities
Details

It was discovered that ldns incorrectly handled certain inputs. An attacker could possibly use this issue to expose sensitive information. (CVE-2020-19860, CVE-2020-19861)

References

Affected packages

Ubuntu:Pro:16.04:LTS / ldns

Package

Name
ldns
Purl
pkg:deb/ubuntu/ldns@1.6.17-8ubuntu0.1+esm1?arch=source&distro=esm-infra/xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.6.17-8ubuntu0.1+esm1

Affected versions

1.*

1.6.17-5
1.6.17-7
1.6.17-8
1.6.17-8ubuntu0.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.6.17-8ubuntu0.1+esm1",
            "binary_name": "ldnsutils"
        },
        {
            "binary_version": "1.6.17-8ubuntu0.1+esm1",
            "binary_name": "libldns-dev"
        },
        {
            "binary_version": "1.6.17-8ubuntu0.1+esm1",
            "binary_name": "libldns1"
        },
        {
            "binary_version": "1.6.17-8ubuntu0.1+esm1",
            "binary_name": "python-ldns"
        }
    ],
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"
}

Database specific

cves_map

{
    "ecosystem": "Ubuntu:Pro:16.04:LTS",
    "cves": [
        {
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2020-19860"
        },
        {
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2020-19861"
        }
    ]
}

Ubuntu:18.04:LTS / ldns

Package

Name
ldns
Purl
pkg:deb/ubuntu/ldns@1.7.0-3ubuntu4.1?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.7.0-3ubuntu4.1

Affected versions

1.*

1.7.0-1ubuntu1
1.7.0-3ubuntu1
1.7.0-3ubuntu2
1.7.0-3ubuntu4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.7.0-3ubuntu4.1",
            "binary_name": "ldnsutils"
        },
        {
            "binary_version": "1.7.0-3ubuntu4.1",
            "binary_name": "libldns-dev"
        },
        {
            "binary_version": "1.7.0-3ubuntu4.1",
            "binary_name": "libldns2"
        },
        {
            "binary_version": "1.7.0-3ubuntu4.1",
            "binary_name": "python-ldns"
        },
        {
            "binary_version": "1.7.0-3ubuntu4.1",
            "binary_name": "python3-ldns"
        }
    ],
    "availability": "No subscription required"
}

Database specific

cves_map

{
    "ecosystem": "Ubuntu:18.04:LTS",
    "cves": [
        {
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2020-19860"
        },
        {
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2020-19861"
        }
    ]
}